Declension table of ?ākāśānantyāyatana

Neuter	Singular	Dual	Plural
Nominative	ākāśānantyāyatanam	ākāśānantyāyatane	ākāśānantyāyatanāni
Vocative	ākāśānantyāyatana	ākāśānantyāyatane	ākāśānantyāyatanāni
Accusative	ākāśānantyāyatanam	ākāśānantyāyatane	ākāśānantyāyatanāni
Instrumental	ākāśānantyāyatanena	ākāśānantyāyatanābhyām	ākāśānantyāyatanaiḥ
Dative	ākāśānantyāyatanāya	ākāśānantyāyatanābhyām	ākāśānantyāyatanebhyaḥ
Ablative	ākāśānantyāyatanāt	ākāśānantyāyatanābhyām	ākāśānantyāyatanebhyaḥ
Genitive	ākāśānantyāyatanasya	ākāśānantyāyatanayoḥ	ākāśānantyāyatanānām
Locative	ākāśānantyāyatane	ākāśānantyāyatanayoḥ	ākāśānantyāyataneṣu

Compound ākāśānantyāyatana -

Adverb -ākāśānantyāyatanam -ākāśānantyāyatanāt